Extract TypeProcessor into separate class
This commit is contained in:
parent
0291388f2a
commit
55bb921a37
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@ -16,37 +16,17 @@
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package org.springframework.boot.context.properties;
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package org.springframework.boot.context.properties;
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import java.beans.BeanInfo;
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import java.beans.IntrospectionException;
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import java.beans.Introspector;
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import java.beans.PropertyDescriptor;
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import java.lang.reflect.Constructor;
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import java.lang.reflect.Field;
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import java.lang.reflect.Method;
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import java.util.ArrayList;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Collection;
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import java.util.HashSet;
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import java.util.List;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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import org.springframework.aot.generate.GenerationContext;
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import org.springframework.aot.generate.GenerationContext;
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import org.springframework.aot.hint.MemberCategory;
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import org.springframework.aot.hint.RuntimeHints;
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import org.springframework.aot.hint.support.RuntimeHintsUtils;
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import org.springframework.aot.hint.support.RuntimeHintsUtils;
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import org.springframework.beans.BeanInfoFactory;
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import org.springframework.beans.ExtendedBeanInfoFactory;
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import org.springframework.beans.factory.aot.BeanFactoryInitializationAotContribution;
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import org.springframework.beans.factory.aot.BeanFactoryInitializationAotContribution;
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import org.springframework.beans.factory.aot.BeanFactoryInitializationAotProcessor;
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import org.springframework.beans.factory.aot.BeanFactoryInitializationAotProcessor;
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import org.springframework.beans.factory.aot.BeanFactoryInitializationCode;
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import org.springframework.beans.factory.aot.BeanFactoryInitializationCode;
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import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
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import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
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import org.springframework.boot.context.properties.bind.Bindable;
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import org.springframework.core.ResolvableType;
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import org.springframework.core.annotation.MergedAnnotations;
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import org.springframework.util.ClassUtils;
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import org.springframework.util.ClassUtils;
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import org.springframework.util.CollectionUtils;
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import org.springframework.util.CollectionUtils;
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import org.springframework.util.ReflectionUtils;
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/**
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/**
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* {@link BeanFactoryInitializationAotProcessor} that contributes runtime hints for
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* {@link BeanFactoryInitializationAotProcessor} that contributes runtime hints for
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@ -89,177 +69,8 @@ class ConfigurationPropertiesBeanFactoryInitializationAotProcessor implements Be
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BeanFactoryInitializationCode beanFactoryInitializationCode) {
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BeanFactoryInitializationCode beanFactoryInitializationCode) {
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RuntimeHintsUtils.registerAnnotation(generationContext.getRuntimeHints(), ConfigurationProperties.class);
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RuntimeHintsUtils.registerAnnotation(generationContext.getRuntimeHints(), ConfigurationProperties.class);
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for (Class<?> type : this.types) {
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for (Class<?> type : this.types) {
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TypeProcessor.processConfigurationProperties(type, generationContext.getRuntimeHints());
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ConfigurationPropertiesReflectionHintsRegistrar.processConfigurationProperties(type,
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}
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generationContext.getRuntimeHints().reflection());
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}
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}
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/**
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* Process a given type for binding purposes, discovering any nested type it may
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* expose via a property.
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*/
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private static final class TypeProcessor {
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private static final BeanInfoFactory beanInfoFactory = new ExtendedBeanInfoFactory();
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private final Class<?> type;
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private final Constructor<?> bindConstructor;
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private final BeanInfo beanInfo;
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private final Set<Class<?>> seen;
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private TypeProcessor(Class<?> type, Constructor<?> bindConstructor, Set<Class<?>> seen) {
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this.type = type;
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this.bindConstructor = bindConstructor;
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this.beanInfo = getBeanInfo(type);
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this.seen = seen;
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}
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private static void processConfigurationProperties(Class<?> type, RuntimeHints runtimeHints) {
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new TypeProcessor(type, getBindConstructor(type, false), new HashSet<>()).process(runtimeHints);
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}
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private void processNestedType(Class<?> type, RuntimeHints runtimeHints) {
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processNestedType(type, getBindConstructor(type, true), runtimeHints);
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}
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private void processNestedType(Class<?> type, Constructor<?> bindConstructor, RuntimeHints runtimeHints) {
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new TypeProcessor(type, bindConstructor, this.seen).process(runtimeHints);
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}
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private static Constructor<?> getBindConstructor(Class<?> type, boolean nestedType) {
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Bindable<?> bindable = Bindable.of(type);
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return ConfigurationPropertiesBindConstructorProvider.INSTANCE.getBindConstructor(bindable, nestedType);
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}
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private void process(RuntimeHints runtimeHints) {
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if (this.seen.contains(this.type)) {
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return;
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}
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this.seen.add(this.type);
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runtimeHints.reflection().registerType(this.type, (hint) -> hint
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.withMembers(MemberCategory.INVOKE_DECLARED_METHODS, MemberCategory.INVOKE_PUBLIC_METHODS));
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handleConstructor(runtimeHints);
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if (this.bindConstructor != null) {
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handleValueObjectProperties(runtimeHints);
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}
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else if (this.beanInfo != null) {
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handleJavaBeanProperties(runtimeHints);
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}
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}
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private void handleConstructor(RuntimeHints runtimeHints) {
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if (this.bindConstructor != null) {
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runtimeHints.reflection().registerConstructor(this.bindConstructor);
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}
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else {
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Arrays.stream(this.type.getDeclaredConstructors())
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.filter((candidate) -> candidate.getParameterCount() == 0).findFirst()
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.ifPresent((constructor) -> runtimeHints.reflection().registerConstructor(constructor));
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}
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}
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private void handleValueObjectProperties(RuntimeHints runtimeHints) {
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for (int i = 0; i < this.bindConstructor.getParameterCount(); i++) {
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String propertyName = this.bindConstructor.getParameters()[i].getName();
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ResolvableType propertyType = ResolvableType.forConstructorParameter(this.bindConstructor, i);
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handleProperty(runtimeHints, propertyName, propertyType);
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}
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}
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private void handleJavaBeanProperties(RuntimeHints runtimeHints) {
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for (PropertyDescriptor propertyDescriptor : this.beanInfo.getPropertyDescriptors()) {
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Method readMethod = propertyDescriptor.getReadMethod();
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if (readMethod != null) {
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ResolvableType propertyType = ResolvableType.forMethodReturnType(readMethod, this.type);
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String propertyName = propertyDescriptor.getName();
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if (isSetterMandatory(propertyName, propertyType) && propertyDescriptor.getWriteMethod() == null) {
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continue;
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}
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handleProperty(runtimeHints, propertyName, propertyType);
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}
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}
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}
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private void handleProperty(RuntimeHints runtimeHints, String propertyName, ResolvableType propertyType) {
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Class<?> propertyClass = propertyType.resolve();
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if (propertyClass == null) {
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return;
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}
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if (propertyClass.equals(this.type)) {
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return; // Prevent infinite recursion
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}
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Class<?> componentType = getComponentType(propertyType);
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if (componentType != null) {
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// Can be a list of simple types
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if (!isJavaType(componentType)) {
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processNestedType(componentType, runtimeHints);
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}
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}
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else if (isNestedType(propertyName, propertyClass)) {
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processNestedType(propertyClass, runtimeHints);
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}
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}
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private boolean isSetterMandatory(String propertyName, ResolvableType propertyType) {
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Class<?> propertyClass = propertyType.resolve();
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if (propertyClass == null) {
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return true;
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}
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if (getComponentType(propertyType) != null) {
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return false;
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}
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return !isNestedType(propertyName, propertyClass);
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}
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private Class<?> getComponentType(ResolvableType propertyType) {
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Class<?> propertyClass = propertyType.toClass();
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if (propertyType.isArray()) {
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return propertyType.getComponentType().toClass();
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}
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else if (Collection.class.isAssignableFrom(propertyClass)) {
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return propertyType.as(Collection.class).getGeneric(0).toClass();
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}
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else if (Map.class.isAssignableFrom(propertyClass)) {
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return propertyType.as(Map.class).getGeneric(1).toClass();
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}
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return null;
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}
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/**
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* Specify whether the specified property refer to a nested type. A nested type
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* represents a sub-namespace that need to be fully resolved.
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* @param propertyName the name of the property
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* @param propertyType the type of the property
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* @return whether the specified {@code propertyType} is a nested type
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*/
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private boolean isNestedType(String propertyName, Class<?> propertyType) {
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if (this.type.equals(propertyType.getDeclaringClass())) {
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return true;
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}
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else {
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Field field = ReflectionUtils.findField(this.type, propertyName);
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return field != null && MergedAnnotations.from(field).isPresent(NestedConfigurationProperty.class);
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}
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}
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private boolean isJavaType(Class<?> candidate) {
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return candidate.getPackageName().startsWith("java.");
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}
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private static BeanInfo getBeanInfo(Class<?> beanType) {
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try {
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BeanInfo beanInfo = beanInfoFactory.getBeanInfo(beanType);
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if (beanInfo != null) {
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return beanInfo;
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}
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return Introspector.getBeanInfo(beanType, Introspector.IGNORE_ALL_BEANINFO);
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}
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catch (IntrospectionException ex) {
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return null;
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}
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}
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}
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}
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@ -0,0 +1,220 @@
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/*
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* Copyright 2012-2022 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.springframework.boot.context.properties;
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import java.beans.BeanInfo;
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import java.beans.IntrospectionException;
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import java.beans.Introspector;
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import java.beans.PropertyDescriptor;
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import java.lang.reflect.Constructor;
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import java.lang.reflect.Field;
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import java.lang.reflect.Method;
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import java.util.Arrays;
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import java.util.Collection;
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import java.util.HashSet;
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import java.util.Map;
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import java.util.Set;
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import org.springframework.aot.hint.MemberCategory;
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import org.springframework.aot.hint.ReflectionHints;
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import org.springframework.beans.BeanInfoFactory;
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import org.springframework.beans.ExtendedBeanInfoFactory;
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import org.springframework.boot.context.properties.bind.Bindable;
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import org.springframework.core.ResolvableType;
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import org.springframework.core.annotation.MergedAnnotations;
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import org.springframework.util.ReflectionUtils;
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/**
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* Registers a given type on {@link ReflectionHints} for binding purposes, discovering any
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* nested type it may expose via a property.
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*
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* @author Andy Wilkinson
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* @author Moritz Halbritter
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* @since 3.0.0
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*/
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public final class ConfigurationPropertiesReflectionHintsRegistrar {
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private static final BeanInfoFactory beanInfoFactory = new ExtendedBeanInfoFactory();
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private final Class<?> type;
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private final Constructor<?> bindConstructor;
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private final BeanInfo beanInfo;
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private final Set<Class<?>> seen;
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private ConfigurationPropertiesReflectionHintsRegistrar(Class<?> type, Constructor<?> bindConstructor,
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Set<Class<?>> seen) {
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this.type = type;
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this.bindConstructor = bindConstructor;
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this.beanInfo = getBeanInfo(type);
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this.seen = seen;
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}
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/**
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* Registers a given type on {@link ReflectionHints} for binding purposes, discovering
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* any nested type it may expose via a property.
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* @param type type to process
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* @param reflectionHints {@link ReflectionHints} to register the types on
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*/
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public static void processConfigurationProperties(Class<?> type, ReflectionHints reflectionHints) {
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new ConfigurationPropertiesReflectionHintsRegistrar(type, getBindConstructor(type, false), new HashSet<>())
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.process(reflectionHints);
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}
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private void processNestedType(Class<?> type, ReflectionHints reflectionHints) {
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processNestedType(type, getBindConstructor(type, true), reflectionHints);
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}
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private void processNestedType(Class<?> type, Constructor<?> bindConstructor, ReflectionHints reflectionHints) {
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new ConfigurationPropertiesReflectionHintsRegistrar(type, bindConstructor, this.seen).process(reflectionHints);
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}
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private static Constructor<?> getBindConstructor(Class<?> type, boolean nestedType) {
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Bindable<?> bindable = Bindable.of(type);
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return ConfigurationPropertiesBindConstructorProvider.INSTANCE.getBindConstructor(bindable, nestedType);
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}
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private void process(ReflectionHints reflectionHints) {
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if (this.seen.contains(this.type)) {
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return;
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}
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this.seen.add(this.type);
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reflectionHints.registerType(this.type, (hint) -> hint.withMembers(MemberCategory.INVOKE_DECLARED_METHODS,
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MemberCategory.INVOKE_PUBLIC_METHODS));
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handleConstructor(reflectionHints);
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if (this.bindConstructor != null) {
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handleValueObjectProperties(reflectionHints);
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}
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else if (this.beanInfo != null) {
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handleJavaBeanProperties(reflectionHints);
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}
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}
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private void handleConstructor(ReflectionHints reflectionHints) {
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if (this.bindConstructor != null) {
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reflectionHints.registerConstructor(this.bindConstructor);
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}
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else {
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Arrays.stream(this.type.getDeclaredConstructors()).filter((candidate) -> candidate.getParameterCount() == 0)
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.findFirst().ifPresent(reflectionHints::registerConstructor);
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}
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}
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private void handleValueObjectProperties(ReflectionHints reflectionHints) {
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for (int i = 0; i < this.bindConstructor.getParameterCount(); i++) {
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String propertyName = this.bindConstructor.getParameters()[i].getName();
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ResolvableType propertyType = ResolvableType.forConstructorParameter(this.bindConstructor, i);
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handleProperty(reflectionHints, propertyName, propertyType);
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}
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}
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private void handleJavaBeanProperties(ReflectionHints reflectionHints) {
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for (PropertyDescriptor propertyDescriptor : this.beanInfo.getPropertyDescriptors()) {
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Method readMethod = propertyDescriptor.getReadMethod();
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if (readMethod != null) {
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ResolvableType propertyType = ResolvableType.forMethodReturnType(readMethod, this.type);
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String propertyName = propertyDescriptor.getName();
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if (isSetterMandatory(propertyName, propertyType) && propertyDescriptor.getWriteMethod() == null) {
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continue;
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}
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handleProperty(reflectionHints, propertyName, propertyType);
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}
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}
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}
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private void handleProperty(ReflectionHints reflectionHints, String propertyName, ResolvableType propertyType) {
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Class<?> propertyClass = propertyType.resolve();
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if (propertyClass == null) {
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return;
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}
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if (propertyClass.equals(this.type)) {
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return; // Prevent infinite recursion
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}
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Class<?> componentType = getComponentType(propertyType);
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if (componentType != null) {
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||||||
|
// Can be a list of simple types
|
||||||
|
if (!isJavaType(componentType)) {
|
||||||
|
processNestedType(componentType, reflectionHints);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
else if (isNestedType(propertyName, propertyClass)) {
|
||||||
|
processNestedType(propertyClass, reflectionHints);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
private boolean isSetterMandatory(String propertyName, ResolvableType propertyType) {
|
||||||
|
Class<?> propertyClass = propertyType.resolve();
|
||||||
|
if (propertyClass == null) {
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
if (getComponentType(propertyType) != null) {
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
return !isNestedType(propertyName, propertyClass);
|
||||||
|
}
|
||||||
|
|
||||||
|
private Class<?> getComponentType(ResolvableType propertyType) {
|
||||||
|
Class<?> propertyClass = propertyType.toClass();
|
||||||
|
if (propertyType.isArray()) {
|
||||||
|
return propertyType.getComponentType().toClass();
|
||||||
|
}
|
||||||
|
else if (Collection.class.isAssignableFrom(propertyClass)) {
|
||||||
|
return propertyType.as(Collection.class).getGeneric(0).toClass();
|
||||||
|
}
|
||||||
|
else if (Map.class.isAssignableFrom(propertyClass)) {
|
||||||
|
return propertyType.as(Map.class).getGeneric(1).toClass();
|
||||||
|
}
|
||||||
|
return null;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Specify whether the specified property refer to a nested type. A nested type
|
||||||
|
* represents a sub-namespace that need to be fully resolved.
|
||||||
|
* @param propertyName the name of the property
|
||||||
|
* @param propertyType the type of the property
|
||||||
|
* @return whether the specified {@code propertyType} is a nested type
|
||||||
|
*/
|
||||||
|
private boolean isNestedType(String propertyName, Class<?> propertyType) {
|
||||||
|
if (this.type.equals(propertyType.getDeclaringClass())) {
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
else {
|
||||||
|
Field field = ReflectionUtils.findField(this.type, propertyName);
|
||||||
|
return field != null && MergedAnnotations.from(field).isPresent(NestedConfigurationProperty.class);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
private boolean isJavaType(Class<?> candidate) {
|
||||||
|
return candidate.getPackageName().startsWith("java.");
|
||||||
|
}
|
||||||
|
|
||||||
|
private static BeanInfo getBeanInfo(Class<?> beanType) {
|
||||||
|
try {
|
||||||
|
BeanInfo beanInfo = beanInfoFactory.getBeanInfo(beanType);
|
||||||
|
if (beanInfo != null) {
|
||||||
|
return beanInfo;
|
||||||
|
}
|
||||||
|
return Introspector.getBeanInfo(beanType, Introspector.IGNORE_ALL_BEANINFO);
|
||||||
|
}
|
||||||
|
catch (IntrospectionException ex) {
|
||||||
|
return null;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
Loading…
Reference in New Issue